There are 1,530 volcanoes on Earth that have erupted atleast once in the Holocene period (in the last 11,500 years)

World's highest active volcano

Nevado Ojos del Salado, the highest peak in Chile, is also the highest active volcano in the world at 6,893 m (22,615 ft). It is also the second highest mountain in the Western Hemisphere and Southern Hemisphere.

Most active volcano

Kilauea volcano on Hawaii, USA is the world's most active volcano, followed by Etna in Italy and Piton de la Fournaise on La Réunion island.

Ring of Fire

The "Ring of Fire" that encircles the Pacific Ocean – which stretches up the west coast of the Americas, around and across to Asia, looping down to the east of Japan, before overwhelming much of Indonesia and the Philippines and whipping around Australasia – boasts the most, with 452.

Loudest eruption

The 1883 eruption of Krakatoa in the Dutch East Indies (now Indonesia) began in the afternoon of 26 August 1883 unleashed a series of massive explosions and two huge tsunamis that killed more than 36,000 people and emitted what is considered to be the loudest sound ever heard by humans, with reports that the noise of the blast reached as far as 3,000 miles away.

Holiest volcano

Mount Fuji, Japan's most active volcano, last erupted in 1708 and is perhaps best known for its visibility from Tokyo on a clear day. Mount Fuji is one of the "Three Holy Mountains", a World Heritage Site and one of Japan's Special Places of Scenic Beauty.

Deadliest eruption

In 1815, Tambora volcano erupted on the Indonesian island of Sumbawa. It is the biggest eruption in the recorded human history. The ash spread around the world, blocking out the sun. This caused cold, damp weather in many places over many months. Crops didn’t grow, causing food shortages that led to starvation and riots. So, the 1816 was called “the year without summer.” An estimated 80,000 people died as a result of this eruption, making it the deadliest volcanic eruption in human history

Vulcano

The word volcano comes from “Vulcano,” the name of an island off the coast of Italy. The ancient Romans believed that Vulcan, the Roman god of fire, lived in a volcano on the island, where he made weapons for the other gods. Fiery eruptions from the island’s volcanoes were believed to be sparks from Vulcan’s forge.

Active, dormant, or extinct

Scientists classify volcanoes as active, dormant, or extinct. An active volcano is a volcano that has erupted in the recorded history. A dormant volcano is an active volcano that has never erupted in recorded history, but has a potential to erupt. An extinct volcano is a volcano that lacks potential for eruption or renewed activity.